Methods and apparatuses for testing one or more reception paths in a radar receiver

US12135389B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Alexander Onic · Linz, AT
• Bernhard Gstoettenbauer · Felberleiten, AT
• Thomas Langschwert · Kirchheim, DE
• Jochen Schrattenecker · Eisenlohrsweg, AT
• Rainer Stuhlberger · Puchenau, AT

Key dates

• Filing date: Dec 23, 2021
• Grant date: Nov 5, 2024
• Expiry date: Nov 15, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S7/4069
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for testing at least one reception path in a radar receiver is provided. The reception path contains a mixer and a downstream signal processing circuit. The method includes injecting a test signal into the radar reception path so that at least a first test tone having a first test tone frequency in a passband of the downstream signal processing circuit and a second test tone having a second test tone frequency outside the passband are present on the radar reception path downstream of the mixer; and determining a characteristic of the radar reception path based on a first characteristic of a baseband signal at the first test tone frequency and a second characteristic of the baseband signal at the second test tone frequency.